Hey there champ! Do you know what a TV show is? Great! Now, a miniseries is kinda like a TV show, but it's shorter and has a specific storyline that ends after a few episodes.
Imagine you have a book, but instead of reading the whole book, you only read a few chapters, and that's the whole story. That's what a miniseries is all about - it tells a story in a shorter time than a regular show.
So, imagine you turn on the TV, and you see a show about a detective solving a mystery, and you only have to watch five episodes of it. After those five episodes, the story is over, and there won't be any more episodes. That's a miniseries!
It's great if you can't commit too much time to watching a regular TV show or if you want to watch something with a specific beginning and end. So, if you like watching things that have an end in sight, miniseries are for you!